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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 17 |
| 3 | 248 |
| 4 | 5403 |
| 5 | 160420 |
| 6 | 6142567 |
| 7 | 291996934 |
| 8 | 16759322733 |
| 9 | 1136940595762 |
| 10 | 89641455771637 |
| 11 | 8102778995663368 |
| 12 | 830222723124364047 |
| 13 | 95509354134959796556 |
| 14 | 12236166882713532940611 |
| 15 | 1733521075683722202738222 |
| 16 | 269910543278748394820341769 |
| 17 | 45936441912756036235229989058 |
[1,2,17,248,5403,160420,6142567,291996934, 16759322733,1136940595762,89641455771637, 8102778995663368,830222723124364047, 95509354134959796556,12236166882713532940611, 1733521075683722202738222, 269910543278748394820341769, 45936441912756036235229989058] |